Bionic drag reduction potato harvester digging shovel

Abstract

The invention discloses a bionic drag reduction potato harvester digging shovel, and belongs to the technical field of agricultural machinery. The bionic drag reduction potato harvester digging shovel is of an integrated structure comprising soil piercing shovel teeth, a soil contact shovel surface I, a shovel handle, a soil contact shovel surface II and a concave surface, a shovel body is arc-shaped, the soil contact shovel surface I and a convex surface are positioned in the front of the digging shovel, the soil contact shovel surface II and the concave surface are positioned at the back of the digging shovel, the convex surface is positioned in the middle of the soil contact shovel surface I, the concave surface is arranged in the middle of the soil contact shovel surface II, the soil piercing shovel teeth are positioned at the front end of the digging shovel, the shovel handle is positioned at the tail end of the digging shovel, the top end of the digging shovel is rectangular, transits to the bottom end by an arc and is fixedly connected with top ends of the soil contact shovel surface I and the soil contact shovel surface II, three triangular sunk screw holes are formed in the shovel handle, the soil piercing wedge angle alpha of the digging shovel ranges from 20 degrees to 45 degrees, and the clearance angle theta of a shovel edge with the soil piercing shovel teeth ranges from 3 degrees to 6 degrees. The digging shovel is high in applicability, the soil piercing capacity and drag reduction and desorption properties of the potato digging shovel can be remarkably improved, and the drag reduction property is improved by 30% or more as compared with a traditional potato digging shovel.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a digging shovel for a bionic drag-reducing potato harvester. Background technique [0002] The function of the potato digging shovel is to dig out the potato pieces and transport the potato pieces to the separation device. Digging performance is an important index to evaluate the performance of potato harvesting equipment, which is closely related to factors such as harvesting equipment structure, operating parameters, and key component materials. my country has a vast territory, and the soil texture and planting agronomic conditions of potato production areas are different. For example, the soil in Northeast my country is heavy, the soil in Northwest China is rocky, and the soil in South China is sandy. A large number of promotional applications. Compared with foreign potato harvesting machinery, domestic models cannot fully meet the needs of product...

AI Technical Summary

Problems solved by technology

my country has a vast territory, and the soil texture and planting agronomic conditions of potato production areas are different. For example, the soil in Northeast my country is heavy, the soil in Northwest China is rocky, and the soil in South China is sandy. A large number of promotional applications

Compared with foreign potato harvesting machinery, domestic models cannot fully meet the needs of production development. There are three main problems: First, poor reliability

The soil environment of potato harvesting machinery is complex, and the efficiency of a single type of excavating mechanism is low, which cannot meet the basic requirements for use

Second, poor adaptability

Under different soil conditions and different plant conditions, the digging parts of potato harvesting machinery cannot effectively solve the problems of large digging resistance, serious soil adhesion, sand and gravel wear on the shovel surface, etc.

Third, insufficient power reserve

It is difficult to meet the power needs of digging and separating potatoes when working in fields with increased excavation depth and high soil specific resistance

[0003] The existing potato harvester digging shovel has a single form and a simple structure. When digging potato blocks, the clay phenomenon is serious, the resistance to entry into the soil is large, the ability to break and break the soil is poor, and the potato damage rate is high. Under complex ground conditions, there are Poor adaptability, low reliability and other issues

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